Size Guide:
Rezon Halos® Sizes
How to Measure
We fit all head sizes.
Halos® sizing is based on head circumference. But fitting your head is not an exact science, heads come in all shapes and sizes. Do not guess your size!
Head circumference is measured from the middle of the forehead and covering the widest part of the back of the head. Be sure to completely encircle the head, as shown.
The measurement should be done using a soft, non-stretchable, flexible (cloth/plastic) tape measure. The tape measure should be a tight fit.
Please be aware that hairstyles might affect the measurements. Also remove any hair clips or accessories that might alter the measurements.
Depending on the sport and personal preference, you can choose to measure above the ears or with the tape sitting on the top of the ears. The tape should sit above the eyebrows and lie flat against the forehead.
Measure your head at least twice for accuracy, and measure in centimetres. If you are in between sizes, choose the smaller size.


Rezon Halos® Sizes
We fit all sizes. Halos® comes in eight sizes to allow for the youngest sportsperson up to those with larger heads.
| Size: | XXXS | XXS | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|---|---|
| Head Circumference (self-measured): | 50-52cm | 52-54cm | 54-56cm | 56-58cm | 58-60cm | 60-62cm | 62-64cm | 64-66cm |
| Typical sizes by age: | 2-7 years | 8-12 years | 13-16 years, Adult female, Adult male |
16-18 years, Adult female, Adult male |
Adult female, Adult male |
Adult male |
Rezon Halos® Fit Guarantee
Halos® is designed to reduce your risk, so it must fit correctly. For most, Halos® will be a perfect fit from day one. For some people, it might take a few sizing attempts.
If Halos® moves while wearing, it is too large! And Halos® should never obstruct your view.
If you feel any tension or end up with deep red marks on your forehead, pick the next size up!
If your Halos® does not fit, let us know and send it back – we will correct the sizing and resend.









